DATA_SET_DESCRIPTION |
Data Set Overview
=================
This RDR is produced by OPGS to provide bit scaling that is
optimized for the tools of, and completed within the time
requirements imposed by, the rover planners. It is identical in
fashion to the Science EDR that is produced by SOAS. If the
Operations EDR is in 8-bit format as a result of onboard 12 to
8-bit scaling using a Lookup Table (LUT), then an Inverse LUT is to
be used to rescale the 8 lowest bits to the 12 lowest bits in the
16-bit signed integer.
Processing
==========
This Operations RDR is produced by OPGS/MIPL using the Mars Suite of
VICAR image processing software.
If the input, the Operations EDR, is in 8-bit format as a result
of onboard 12 to 8-bit scaling using a Lookup Table (LUT), then an
Inverse LUT is used to rescale the 8 lowest bits to the 12 lowest
bits in the 16-bit signed integer.
Note: The operations RDRs differ from the science RDRs in 2 ways:
the input files (EDRs) and the RDR processing. The operations EDRs
are raw uncalibrated data and are considered part of the critical
path in rover traversability operations. In contrast, the operations
EDRs are processed further using the SOAS software to create the
science EDRs. This is done to recover the original 12-bit raw
measurement obtained by the science camera to within the uncertainty
of the noise in the original measured value. Differences between
operations and science RDRs are based on the software used to create
them; the MIPL Mars Program Suite and SOAS software are used to
create the operations and science products, respectively.
Data
====
1 band, 16-bit signed integer, Dual PDS/VICAR (OPGS) binary file.
The RDR data product is comprised of radiometrically decalibrated
and/or camera model corrected and/or geometrically altered versions
of the raw camera data, in both single and multi-frame (mosaic)
form. Most RDR data products will have PDS labels, or if generated
by MIPL (OPGS), dual PDS/VICAR labels. Non-labeled RDRs include the
Terrain products (Mesh and Wedge).
The following is a list of the types of ILUT files along
with the Product Type Identifier, which is an element in the formal
RDR file name:
Data Product Linearized Non-Linearized
------------ ---------- --------------
Inverse LUT RDR ILF ILL
Inverse LUT RDR (Sub-frame) ISF ISL
Inverse LUT RDR (Downsampled) IDN IDL
Inverse LUT RDR (Thumbnail) ITH IHN
Software
========
The MIPL Mars Program Suite was used to generate these RDRs.
Media/Format
============
The data set will initially be delivered and kept online. Upon
Mission completion, the Hazcam Operations RDRs will be delivered
to PDS on DVD.
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